Warren Derrill is a young CIA agent, puzzled by his new, temporary assignment: Follow fellow agent Sharon Williams Fonseca while she tours Athens, Greece with her family, and report on her movements. Is she a rogue agent? If so, his assignment is all the more puzzling as he isn't trained for this sort of thing.Following Fonseca without being seen proves to be a difficult assignment. Serveral times he is almost seen, then loses her. He picks her up again at a topless beach near Athens, and watches her pass information to someone. What happens next convinces Derrill that Fonseca is indeed a bad agent. But he has one more encounter to get through.